Thread size for caliper inlet pipe?

[BrianK]

Mine could use a little chasing, dunno what size tap to use, so any tips appreciated.

Talking about the metal pipe that connects the front brake line to the caliper on a 73 850. Thanks

 

[L.A.B.]

= 3/8 x 24 tpi (UNF).

 

[BrianK]

Thanks Les. Now let's see if I got me one of those sized-taps...